There is a wiki article on this. My favorite is #2.
>-----Original Message-----
>From: Tom Butler [mailto:[EMAIL PROTECTED]
>Sent: Wednesday, January 4, 2006 12:13 AM
>To: ''MyFaces Discussion''
>Subject: RE: referencing a managed bean property problem
>
>Simon,
>
>I have a follow up question to this: I have a .jsf page that displays a
>datatable (listdatamodel) showing rows of names. At the end of each row I
>display a commandlink with the value 'select' that allows the user to select
>a name. After they select a name, I want to take them to a second page to
>show details for the selected value.
>
>Here is the commandlink from the first .jsf page:
>
><h:commandLink action="selectprovider" value="#{messages['sort_select']}" />
>
>On the second .jsf page, I access the same bean as was used for the first
>.jsf page - I want to access the row index that the user selected from the
>first page. Here's what I've tried and values I receive
>(searchproviders_bean = bean from 1st page; dm_searchresults =
>listdatamodel)
>
><h:outputText value="#{searchproviders_bean.dm_searchresults.rowIndex}"/>
>Always returns -1
>
><h:outputText value="#{searchproviders_bean.dm_searchresults.rowCount}"/>
>Returns correct # of total rows
>
><h:outputText
>value="#{searchproviders_bean.dm_searchresults.getRowIndex()}"/>
>Returns error - assume cannot call method
>
>What is the best way to pass the id of a selected row from a datatable to
>the second .jsf page?
>
>Thanks
>Tom
>
>
>
>-----Original Message-----
>From: Simon Kitching [mailto:[EMAIL PROTECTED]
>Sent: Tuesday, January 03, 2006 4:26 PM
>To: MyFaces Discussion
>Subject: Re: referencing a managed bean property problem
>
>Hi,
>
>I don't think that the syntax "#{savingsBean.recentBlogEntries[row]}" is
>allowed. EL doesn't support passing parameters to methods, just
>reading/writing *simple* properties.
>
>I presume your #{savingsBean.savingsList} method returns a List.
>You could add a method to your savingsBean that returns a ListDataModel
>instance rather than a List, and specify that in the h:dataTable's
>"value" attribute. You can then write a getRecentBlogEntries method
>which accesses that ListDataModel object to get the current rowData or
>rowIndex properties. These refer to the row currently being rendered at
>the time the getRecentBlogEntries method is invoked.
>
>
>Regards,
>
>Simon
>
>Alexandre Poitras wrote:
>> I can see one quick mistake:
>> #{savingsBean.recentBlogEntries[#{row}]} should be
>> #{savingsBean.recentBlogEntries[row]}
>>
>> On 1/3/06, Marco Mistroni <[EMAIL PROTECTED]> wrote:
>>> hello all,
>>> this code results in an error
>>>
>>> <f:view>
>>> <h:form id="savingsForm">
>>> <h:dataTable value="#{savingsBean.savingsList}" var="row"
>border="1">
>>> <h:column>
>>> <h:outputText value="#{row}"/>
>>> </h:column>
>>> <h:column>
>>> <h:inputText value="#{savingsBean.recentBlogEntries[#{row}]}"/>
>>> </h:column>
>>> </h:dataTable>
>>> <h:panelGroup>
>>> <h:commandButton id="submitInsert" action="#{savingsBean.insert}"
>>> value="Insert"/>
>>> </h:panelGroup>
>>> </h:form>
>>> </f:view>
>>>
>>>
>>> at this point
>>>
>>> <h:inputText value="#{savingsBean.recentBlogEntries[#{row}]}"/
>>>
>>> recentBlogEntries is a Map. i tried, for hte sake of trying, to put in a
>>> List (savingsList, the one used for DataTable)all keys
>>> of the Map, and tried to generate inputText for the Map by passing the
>value
>>> of #{row} (which woul dbe the key of the map)
>>>
>>> it didnt work out..... is that impossible or is my syntax wrong somehow?
>>>
>>> thanks and regards
>>> marco
>>
>>
>> --
>> Alexandre Poitras
>> Québec, Canada
>>
>>
>
>
